Lesmann Accordion Amp

1960 Lesmann Accordio-Organ Amplifier

This thing is an absolute beast! What started life as a Lesmann accordion-organ amplifier with percussion, Toneworx turned into a fire breathing, parallel gain stage, reverberating, dual rectifying monster!

We reworked the accordion power supply to provide a 1A pedal power source, added a Fender-esque reverb driver and tank, increased the gain with a parallel 12AX7 gain stage in V2, and added the ability to switch between tube and solid state rectification. Pure. Tone. Juggernaut!

Schematic

Lesmann Accordion Amp

Lesmann Accordion Amp

Lesmann Accordion Amp